Polar A370 Fitness Tracker with 24/7 Wrist Based Heart Rate, GPS via phone (90064905) + Bluetooth Digital Body Mass Bathroom Scale + Fusion Bluetooth Headphones Black/Red + 1 Year Extended Warranty - Walmart.com
Silicone Wrist Sport Band for Polar A360 A370 Watchband Strap Replacement for POLAR A360/A370 GPS Smart Watch Accessories - AliExpress
Polar A370 User manual
Amazon.com: S-YUWEN Compatible with Polar A360 A370 Watch Band,2021 Replacement Wrist Band Soft Silicone Watchband Smart Sport Watch Strap for Polar A360 A370 for Women Men : Cell Phones & Accessories